Sounds

Production of sounds

By the end of the lesson, the learner should be able to:


Demonstrate that sound is produced by vibrating objects

Producing sound by vibrating strings, tins and bottles

Strings
Tins
Bottles
Stick
Tuning forks
Nails
shakers

Comprehensive secondary physics students book 2 pages 73
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 186-189 93

Sounds

Nature of sound waves

By the end of the lesson, the learner should be able to:


Describe the nature of sound waves

Describing and observing the characteristics of sound waves using the echo methods to find the speed of sound
Discussions

Open tube
Closed tube
Strings
bottles

Comprehensive secondary physics students book 2 pages 74-76
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 194 

Sounds

Propagation of sounds

By the end of the lesson, the learner should be able to:

By the end of the the lesson, the learner should be able to:
Show that light does not travel in vacuum

Demonstrating that sound requires a materials random for perpetration

Bell jar
Vacuum pump
Electric bell

Comprehensive secondary physics students book 2 pages 74
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 190-193

Sounds

Propagation of sounds

By the end of the lesson, the learner should be able to:

By the end of the the lesson, the learner should be able to:
Show that light does not travel in vacuum

Demonstrating that sound requires a materials random for perpetration

Bell jar
Vacuum pump
Electric bell

Comprehensive secondary physics students book 2 pages 74
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 190-193

Sound

Speed of sound
Factors affecting the speed of sound

By the end of the lesson, the learner should be able to:


Determine the speed of sound in air by echo methods


State factors that affect the speed of sound

Investigating the factors determining the speed of sound

Discussing how different aspects of nature affects the speed of sound

Stop clock/watch
Chart on procedure for formulating the speed of sound

Sources of sound
Solid
Water
Air

Comprehensive secondary physics students book 2 pages 77-78
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 190-193 
Comprehensive secondary physics students book 2 pages 78-79
Comprehensive secondary physics teachers book 2 pages 38-39
Secondary physics KLB students book 2 page 193

Sound

Factors affecting the speed of sound

By the end of the lesson, the learner should be able to:


State factors that affect the speed of sound

Discussing how different aspects of nature affects the speed of sound

Sources of sound
Solid
Water
Air

Comprehensive secondary physics students book 2 pages 78-79
Comprehensive secondary physics teachers book 2 pages 38-39
Secondary physics KLB students book 2 page 193

Fluid Flow

Structure and turbulent flow

By the end of the lesson, the learner should be able to:


Describe the streamline and turbulent flow

Discussions
Observing and defining
Streamline and turbulent flow

Water
Pipes of varying diameter
Sheet of paper

Comprehensive secondary physics students book 2 pages 81
Comprehensive secondary physics teachers book 2 pages 40-42
Secondary physics KLB students book 2 page 204-208 

Fluid Flow

Equation of continuity

By the end of the lesson, the learner should be able to:


Derive the equation of continuity

Deriving the equation of continuity
Discussions

pipes of varying diameter
charts on equation of continuity

Comprehensive secondary physics students book 2 pages 82
Comprehensive secondary physics teachers book 2 pages 40-42
Secondary physics KLB students book 2 page 210-215 

Fluid Flow

Bernoulli?s effect

By the end of the lesson, the learner should be able to:


Describe experiments to illustrate Benoullli?s effect

Illustrating Bernoulli?s effect by experiments

Paper funnel
Plane paper

Comprehensive secondary physics students book 2 pages 83-84
Comprehensive secondary physics teachers book 2 pages 40-42
Secondary physics KLB students book 2 page 215-221

Fluid Flow

Application of Bernoulli?s effect

By the end of the lesson, the learner should be able to:


Describe where Bernoulli?s effect is applied such as in the Bunsen burner, spray gun, carburetor, aerofoil and spinning ball

Describing the application of Bernoulli?s principle

Bunsen burner

Comprehensive secondary physics students book 2 pages 84-87
Comprehensive secondary physics teachers book 2 pages 40-42
Secondary physics KLB students book 2 page 221-231 

Fluid Flow

Application of Bernoulli?s effect

By the end of the lesson, the learner should be able to:


Describe where Bernoulli?s effect is applied such as in the Bunsen burner, spray gun, carburetor, aerofoil and spinning ball

Describing the application of Bernoulli?s principle

Bunsen burner

Comprehensive secondary physics students book 2 pages 84-87
Comprehensive secondary physics teachers book 2 pages 40-42
Secondary physics KLB students book 2 page 221-231 

Linear Motion

Introduction to Linear Motion and Basic Concepts

By the end of the lesson, the learner should be able to:
Define distance, displacement, speed, velocity and acceleration
-Distinguish between scalar and vector quantities
-State the SI units for distance, displacement, speed, velocity and acceleration
-Explain the difference between distance and displacement using examples

Q/A on types of motion students observe daily
-Demonstration of linear motion using trolley on runway
-Discussion on difference between distance and displacement using school compound examples
-Drawing diagrams to show distance vs displacement
-Practical activity: Students walk different paths between two points to measure distance vs displacement

Trolley
-Runway/metre rule
-Chalk for marking
-Charts showing motion types
-School compound map
-Measuring tape

KLB Secondary Physics Form 3, Pages 1-4

Linear Motion

Speed and Velocity Calculations
Acceleration and Equations of Motion
Motion-Time Graphs (Distance-Time and Speed-Time)

By the end of the lesson, the learner should be able to:
Calculate average speed and velocity
-Convert units between m/s and km/h
-Solve problems involving speed, velocity, distance and time
-Apply speed and velocity concepts to real-life situations
Plot distance-time graphs for different types of motion
-Interpret distance-time and speed-time graphs
-Calculate speed from distance-time graphs
-Determine distance travelled from speed-time graphs using area under curve

Review of previous lesson through Q/A
-Demonstration of speedometer reading
-Worked examples on speed calculations
-Unit conversion practice (m/s to km/h and vice versa)
-Problem-solving session with real-life scenarios
-Students calculate their walking speed around school field
Review equations of motion through Q/A
-Demonstration using trolley with different speeds
-Plotting distance-time graphs for: stationary body, uniform speed, variable speed
-Plotting speed-time graphs for different motions
-Students practice graph plotting and interpretation
-Calculating areas under graphs

Speedometer (if available)
-Stopwatches
-Measuring tape
-Calculator
-Worked examples charts
-School field for practical work
Trolley
-Inclined plane
-Stopwatch
-Metre rules
-Chart showing equation derivations
-Worked examples
Graph paper
-Rulers
-Trolley
-Stopwatch
-Metre rules
-Charts showing different graph types
-Data tables for plotting

KLB Secondary Physics Form 3, Pages 2-4
KLB Secondary Physics Form 3, Pages 5-13

Linear Motion

Velocity-Time Graphs and Acceleration

By the end of the lesson, the learner should be able to:
Plot and interpret velocity-time graphs
-Calculate acceleration from gradient of velocity-time graph
-Determine displacement from area under velocity-time graph
-Distinguish between uniform and non-uniform acceleration from graphs

Review of previous graphs through Q/A
-Demonstration of changing velocity using trolley
-Plotting velocity-time graphs for: uniform velocity, uniform acceleration, variable acceleration
-Calculating gradients to find acceleration
-Calculating areas to find displacement
-Interpretation of curved velocity-time graphs

Graph paper
-Rulers
-Trolley
-Stopwatch
-Inclined plane
-Charts showing v-t graphs
-Calculator
-Sample data sets

KLB Secondary Physics Form 3, Pages 8-13

Linear Motion

Measuring Speed, Velocity and Acceleration Using Ticker-Timer
Motion Under Gravity - Free Fall

By the end of the lesson, the learner should be able to:
Describe the working principle of a ticker-timer
-Determine speed and velocity using ticker-timer
-Calculate acceleration from ticker-tape analysis
-Create tape charts to show different types of motion

Review motion graphs through Q/A
-Explanation of ticker-timer operation (50Hz frequency)
-Demonstration of ticker-timer setup with trolley
-Analysis of ticker-tapes: equal spacing (uniform motion), increasing spacing (acceleration)
-Creating tape charts by cutting and pasting strips
-Calculations using 10-tick intervals (0.2s)

Ticker-timer
-Ticker-tape
-Trolley
-Runway
-Power supply
-Scissors
-Cellotape
-Graph paper
-Rulers
-Calculator
Various objects for dropping
-Stopwatch
-Measuring tape
-Safety equipment
-Charts showing free fall
-Worked examples on board

KLB Secondary Physics Form 3, Pages 13-18

Linear Motion

Horizontal Projection and Determining g Using Simple Pendulum

By the end of the lesson, the learner should be able to:
Analyze motion of horizontally projected objects
-Calculate range and time of flight for horizontal projection
-Determine acceleration due to gravity using simple pendulum
-Apply pendulum formula T = 2π√(l/g)

Review free fall concepts through Q/A
-Demonstration of horizontal projection using ball rolling off table
-Analysis of projectile motion: horizontal and vertical components
-Setup and timing of simple pendulum
-Multiple readings for different pendulum lengths
-Calculating g using T² vs l graph
-Discussion on experimental errors and precautions

Ball
-Table
-Measuring tape
-Stopwatch
-Simple pendulum setup
-Strings of different lengths
-Masses
-Clamp and stand
-Graph paper
-Calculator

KLB Secondary Physics Form 3, Pages 25-27

Refraction of Light

Introduction to Refraction and Basic Phenomena
Laws of Refraction and Snell's Law

By the end of the lesson, the learner should be able to:
Define refraction of light
-Explain why light bends when passing from one medium to another
-Identify examples of refraction in daily life
-Distinguish between optically dense and optically rare media
-Describe the behavior of light at interfaces
State the two laws of refraction
-Define refractive index and state its symbol
-Apply Snell's law: sin i/sin r = constant
-Understand that incident ray, refracted ray and normal lie in same plane
-Calculate refractive index from experimental data

Q/A on light behavior students observe daily
-Demonstration: stick in water appearing bent
-Demonstration: coin in beaker appearing raised
-Discussion on swimming pool appearing shallow
-Observation of refraction using glass block and pins
-Drawing ray diagrams showing refraction
-Safety precautions when handling glass
Review refraction phenomena through Q/A
-Experiment: investigating refraction through glass block
-Measuring angles of incidence and refraction
-Plotting graph of sin i against sin r
-Derivation and application of Snell's law
-Worked examples calculating refractive index
-Discussion on significance of constant ratio

Glass blocks
-Beakers
-Water
-Coins
-Sticks/pencils
-Pins
-White paper
-Ray box (if available)
-Charts showing refraction examples
Glass blocks
-Pins
-Protractor
-Ruler
-White paper
-Graph paper
-Calculator
-Ray box
-Soft board
-Drawing pins

KLB Secondary Physics Form 3, Pages 33-35
KLB Secondary Physics Form 3, Pages 35-39

Refraction of Light

Laws of Refraction and Snell's Law

By the end of the lesson, the learner should be able to:
State the two laws of refraction
-Define refractive index and state its symbol
-Apply Snell's law: sin i/sin r = constant
-Understand that incident ray, refracted ray and normal lie in same plane
-Calculate refractive index from experimental data

Review refraction phenomena through Q/A
-Experiment: investigating refraction through glass block
-Measuring angles of incidence and refraction
-Plotting graph of sin i against sin r
-Derivation and application of Snell's law
-Worked examples calculating refractive index
-Discussion on significance of constant ratio

Glass blocks
-Pins
-Protractor
-Ruler
-White paper
-Graph paper
-Calculator
-Ray box
-Soft board
-Drawing pins

KLB Secondary Physics Form 3, Pages 35-39

Refraction of Light

Absolute and Relative Refractive Index

By the end of the lesson, the learner should be able to:
Define absolute and relative refractive index
-Relate refractive index to speed of light in different media
-Apply the relationship n = c/v
-Calculate relative refractive index between two media
-Solve problems involving refractive indices

Q/A review on Snell's law and calculations
-Discussion on light speed in different media
-Derivation of n = c/v relationship
-Explanation of absolute vs relative refractive index
-Worked examples with multiple media
-Problem-solving session with real materials
-Group work on refractive index calculations

Calculator
-Charts showing refractive indices
-Worked examples
-Reference tables
-Graph paper
-Different transparent materials
-Speed of light reference chart

KLB Secondary Physics Form 3, Pages 39-43

Refraction of Light

Real and Apparent Depth

By the end of the lesson, the learner should be able to:
Explain why objects under water appear nearer than actual position
-Define real depth, apparent depth and vertical displacement
-Derive the relationship n = real depth/apparent depth
-Calculate apparent depth and vertical displacement
-Apply concepts to practical situations

Review refractive index through Q/A
-Demonstration: coin at bottom of beaker appears raised
-Experiment: measuring real and apparent depth
-Derivation of n = real depth/apparent depth
-Worked examples on swimming pools, tanks
-Practical: determining apparent depth using travelling microscope method
-Discussion on viewing angle effects

Beakers
-Water
-Coins
-Rulers
-Pins
-Travelling microscope (if available)
-Glass blocks
-Colored chalk dust
-Calculator
-Measuring cylinders

KLB Secondary Physics Form 3, Pages 44-48

Refraction of Light

Experimental Determination of Refractive Index

By the end of the lesson, the learner should be able to:
Describe methods to determine refractive index experimentally
-Use real and apparent depth method
-Apply pin method for refractive index determination
-Use no-parallax method
-Calculate refractive index from experimental data
-Discuss sources of error and precautions

Q/A on real and apparent depth concepts
-Experiment 1: Real and apparent depth using pins
-Experiment 2: Glass block method using pins
-Experiment 3: No-parallax method with water
-Data collection and analysis
-Plotting graphs where applicable
-Discussion on experimental errors and improvements

Glass blocks
-Pins
-Cork holders
-Beakers
-Water
-Rulers
-White paper
-Clamp and stand
-Graph paper
-Calculator
-Measuring tape

KLB Secondary Physics Form 3, Pages 48-51

Refraction of Light

Critical Angle and Total Internal Reflection

By the end of the lesson, the learner should be able to:
Define critical angle
-State conditions for total internal reflection
-Derive relationship between critical angle and refractive index
-Calculate critical angle for different materials
-Explain total internal reflection using ray diagrams

Review experimental methods through Q/A
-Demonstration: increasing angle of incidence in glass-air interface
-Observation of critical angle and total internal reflection
-Derivation of sin c = 1/n relationship
-Worked examples calculating critical angles
-Investigation using semi-circular glass block
-Discussion on applications of total internal reflection

Semi-circular glass block
-Ray box
-White paper
-Protractor
-Pins
-Calculator
-Charts showing TIR
-Water
-Different transparent blocks

KLB Secondary Physics Form 3, Pages 51-55

Refraction of Light

Critical Angle and Total Internal Reflection

By the end of the lesson, the learner should be able to:
Define critical angle
-State conditions for total internal reflection
-Derive relationship between critical angle and refractive index
-Calculate critical angle for different materials
-Explain total internal reflection using ray diagrams

Review experimental methods through Q/A
-Demonstration: increasing angle of incidence in glass-air interface
-Observation of critical angle and total internal reflection
-Derivation of sin c = 1/n relationship
-Worked examples calculating critical angles
-Investigation using semi-circular glass block
-Discussion on applications of total internal reflection

Semi-circular glass block
-Ray box
-White paper
-Protractor
-Pins
-Calculator
-Charts showing TIR
-Water
-Different transparent blocks

KLB Secondary Physics Form 3, Pages 51-55

Refraction of Light

Applications of Total Internal Reflection - Optical Devices

By the end of the lesson, the learner should be able to:
Explain working of periscope using total internal reflection
-Describe use of prisms in optical instruments
-Understand principle of optical fibers
-Explain advantages of prisms over mirrors
-Analyze light paths in prism binoculars and pentaprism

Q/A review on critical angle and TIR
-Demonstration: 45° prisms turning light through 90° and 180°
-Construction of simple periscope model
-Explanation of optical fiber principle
-Discussion on prism binoculars and pentaprism
-Comparison of prisms vs mirrors advantages
-Practical: observing TIR in water-filled apparatus

45° prisms
-Periscope model
-Optical fiber samples
-Mirrors for comparison
-Ray box
-Water
-Transparent containers
-Charts showing optical instruments
-Binoculars (if available)

KLB Secondary Physics Form 3, Pages 55-58

Refraction of Light

Mirage and Atmospheric Refraction

By the end of the lesson, the learner should be able to:
Explain formation of mirage using refraction principles
-Describe atmospheric refraction effects
-Understand continuous refraction in varying density media
-Explain why sun appears above horizon after sunset
-Discuss polar mirages and their formation

Review TIR applications through Q/A
-Demonstration of refraction in liquids of different densities
-Explanation of hot air effects on light path
-Discussion on desert mirages and road mirages
-Atmospheric refraction effects on sun position
-Analysis of continuous refraction in varying media
-Drawing ray diagrams for mirage formation

Liquids of different densities
-Transparent containers
-Heat source (safe)
-Charts showing mirage formation
-Diagrams of atmospheric refraction
-Pictures of mirages
-Ray diagrams

KLB Secondary Physics Form 3, Pages 55-56

Refraction of Light

Dispersion of White Light

By the end of the lesson, the learner should be able to:
Define dispersion of white light
-Explain why white light splits into colors
-Identify colors of visible spectrum in order
-Understand that different colors have different refractive indices
-Describe formation of rainbow

Q/A on atmospheric effects and TIR
-Experiment: dispersion using triangular prism
-Observation of spectrum formation
-Discussion on why different colors bend differently
-Explanation of rainbow formation
-Identification of ROYGBIV sequence
-Investigation of spectrum using CD/DVD

Triangular glass prism
-White light source
-Screen
-Ray box
-CD/DVD
-White paper
-Ruler
-Charts showing spectrum
-Pictures of rainbows

KLB Secondary Physics Form 3, Pages 58-60

Refraction of Light

Recombination of Spectrum and Problem Solving

By the end of the lesson, the learner should be able to:
Demonstrate recombination of dispersed light
-Explain Newton's disc experiment
-Use concave mirror to recombine spectrum
-Solve complex problems involving refraction
-Apply all refraction concepts to examination-type questions

Review dispersion concepts through Q/A
-Experiment: recombining spectrum using second prism
-Demonstration of Newton's disc
-Using concave mirror to focus spectrum
-Comprehensive problem-solving session covering all topics
-Practice with past examination questions
-Review and consolidation of entire unit

Second triangular prism
-Concave mirror
-Newton's disc
-Motor (for spinning disc)
-Calculator
-Past exam papers
-Comprehensive problem sets
-Review charts
-All previous apparatus for revision

KLB Secondary Physics Form 3, Pages 58-60

Refraction of Light

Recombination of Spectrum and Problem Solving

By the end of the lesson, the learner should be able to:
Demonstrate recombination of dispersed light
-Explain Newton's disc experiment
-Use concave mirror to recombine spectrum
-Solve complex problems involving refraction
-Apply all refraction concepts to examination-type questions

Review dispersion concepts through Q/A
-Experiment: recombining spectrum using second prism
-Demonstration of Newton's disc
-Using concave mirror to focus spectrum
-Comprehensive problem-solving session covering all topics
-Practice with past examination questions
-Review and consolidation of entire unit

Second triangular prism
-Concave mirror
-Newton's disc
-Motor (for spinning disc)
-Calculator
-Past exam papers
-Comprehensive problem sets
-Review charts
-All previous apparatus for revision

KLB Secondary Physics Form 3, Pages 58-60